Satellite Precipitation Estimates (TXUS20 KWBC)
Issued by NWS

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000
TXUS20 KNES 220132
SPENES
ZCZC NFDSPENES ALL
SPENES
VIZ000-PRZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 08/22/14 0131Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404
LATEST DATA USED: GOES-EAST:0115Z  JS
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LOCATION...PUERTO RICO...
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ATTN WFOS...SJU...
ATTN RFCS...
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EVENT...SATELLITE TRENDS WITH APPROACHING TROPICAL WAVE.
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SHORT TERM OUTLOOK VALID 0130-1200Z...MEDIUM CONFIDENCE FACTOR IN SHORT
TERM OUTLOOK...SATELLITE ANALYSIS BRANCH TROPICAL DESK CLASSIFICATION
PLACED THE LOW LEVEL CENTER OF STRONG TROPICAL WAVE AT APPROXIMATELY 17.8N
59.4W AT 2345Z. IR IMAGERY THROUGH 0115Z IS SHOWING CONVECTION INCREASING
IN FAIRLY CLOSE PROXIMITY TO THIS LOW LEVEL CENTER AS IT MOVES STEADILY
TO THE WNW. WELL AHEAD OF THIS FEATURE, THE OUTER BANDS OF THE TROPICAL
WAVE ARE MOVING ACROSS THE VIRGIN ISLANDS AND PUERTO RICO WITH HEAVY BUT
QUICKLY PROPAGATING SCATTERED CONVECTION. SOME OF THE EMBEDDED CONVECTION
WITHIN THE BANDS JUST EAST OF 65W DO HAVE A BETTER IR SIGNATURE THAN THE
EARLIER AND CURRENT ACTIVITY AFFECTING PUERTO RICO AND LIKELY CONTAIN
EVEN HEAVIER LOCALIZED CONVECTIVE ELEMENTS. A LOOK AT THE 00Z SOUNDINGS
FROM PUERTO RICO AND FROM SAINT MARTIN SUPPORTS EARLIER MICROWAVE DATA
IN THE PRESENCE OF A SIGNIFICANT AREA OF DEEP TROPICAL MOISTURE WITH
PRECIPITABLE WATER VALUES APPROACHING 2.5" AROUND THE ISLANDS. MICROWAVE
DATA SHOWS THE AREA OF HIGHER PW VALUES EXTENDS WELL TO THE EAST AND
SOUTHEAST OF THE ISLANDS WITH IR IMAGERY INDICATING ACTIVE CONVECTION
STRETCHING BACK A FEW DEGREES EAST OF 60W. OVER THE NEXT SEVERAL HOURS
AND INTO THE EARLY PART OF SATURDAY, EXPECT PERIODIC HEAVY SHOWERS TO
SPREAD ACROSS THE ISLANDS AS THE OUTER BANDS OF THE TROPICAL WAVE MOVE
THROUGH. SOUNDING DATA IMPLIES STRENGTHENING EASTERLY MEAN FLOW THROUGH
THE PERIOD WHICH SHOULD PROMOTE CONTINUED QUICK MOVEMENT TO THE INDIVIDUAL
SHOWERS THOUGH THERE MAY BE SOME ADDED ENHANCEMENT ON THE EASTERN FACING
TERRAIN. BEYOND THIS TIME PERIOD, THE INTENSITY AND LOCATION OF HEAVIER
RAINFALL OVER PUERTO RICO AND THE VIRGIN ISLANDS WILL DEPEND ON THE
DEVELOPMENT AND TRACK OF THE CENTER OF THE TROPICAL DISTURBANCE.
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....NESDIS IS A MEMBER OF NWSCHAT (NESDISSATELLITEPRECIP)....
....NESDIS IS A MEMBER OF 12 PLANET....
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FOR QUESTIONS AND COMMENTS CONCERNING THE SATELLITE
PRECIPITATION MESSAGES AND GRAPHICS PLEASE EMAIL
SSDPrecip@noaa.gov
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FOR PRECIP MESSAGES AND GRAPHICS ON THE WEB:
http://www.ospo.noaa.gov/Products/atmosphere/spe/
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FOR AUTOMATED SATELLITE PRECIPITATION ESTIMATES ON THE WEB:
http://www.star.nesdis.noaa.gov/smcd/emb/ff/CONUS.php
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LAT...LON 1904 6740 1899 6433 1717 6415 1724 6738
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